US 2019/0162284 A1 · HYDROKINETIC TORQUE COUPLING DEVICE WITH TURBINE MADE OF LIGHTWEIGHT MATERIAL AND TORSIONAL VIBRATION DAMPER

Abstract

A hydrokinetic torque-coupling device comprises an impeller wheel, a turbine wheel drivable by the impeller wheel, a torsional vibration damper, and a turbine hub non-rotatably connected to the turbine wheel. The turbine wheel includes a turbine shell and at least one coupling pin formed integrally with the turbine shell and extending radially outwardly from the turbine shell. The torsional vibration damper comprises a first damper, a driven member rotatable relative to the first damper retainer, and damper elastic members interposed between the first damper retainer and the driven member. The turbine hub is non-rotatably coupled to the driven member of the torsional vibration damper. The first damper retainer has at least one angularly extending bayonet slot configured to receive the at least one coupling pin therein such that the at least one coupling pin being angularly moveable in the at least one bayonet slot relative to the first damper retainer.

Claims21

Dependent claims

A hydrokinetic torque-coupling device for coupling together a driving shaft and a driven shaft, the torque-coupling device comprising:

an impeller wheel coaxial with a rotation axis;
a turbine wheel coaxial with and drivable by the impeller wheel, the turbine wheel including a turbine shell and at least one coupling pin extending radially outwardly from an outer peripheral surface of the turbine shell;
a torsional vibration damper;
and
a turbine hub non-rotatably connected to the turbine wheel;
the torsional vibration damper comprising:
a first damper retainer rotatable about the rotation axis;
a driven member rotatable relative to the first damper retainer coaxially with the rotation axis;
and
a plurality of damper elastic members interposed between the first damper retainer and the driven member, the damper elastic members elastically coupling the first damper retainer to the driven member;
the turbine hub non-rotatably coupled to the driven member of the torsional vibration damper;
the first damper retainer having at least one bayonet slot configured to receive the at least one coupling pin therein such that the at least one coupling pin is moveable in the at least one bayonet slot relative to the first damper retainer.

9 more elements

A method for assembling a hydrokinetic torque-coupling device for coupling together a driving shaft and a driven shaft, the method comprising the steps of:

providing a turbine hub;
providing a preassembled turbine wheel, the turbine wheel including a turbine shell and formed with at least one coupling pin formed integrally with the turbine shell and extending radially outwardly from an outer peripheral surface of the turbine shell;
providing at least partially preassembled torsional vibration damper including a first damper retainer formed with at least one angularly extending bayonet slot configured to receive the at least one coupling pin therein, a driven member rotatable relative to the first damper retainer coaxially therewith, and a plurality of damper elastic members interposed between the first damper retainer and the driven member for elastically coupling the first damper retainer to the driven member;
mounting the turbine wheel to the at least partially preassembled torsional vibration damper so that the at least one coupling pin is placed angularly in the middle of the at least one bayonet slot;
and
non-rotatably securing the turbine wheel and the at least partially preassembled torsional vibration damper to the turbine hub.

3 more elements

Dependencies are inferred from the claim text.

Hydrokinetic torque coupling device with turbine made of lightweight material and torsional vibration damper

Life of this patent

Hydrokinetic torque coupling device with turbine made of lightweight material and torsional vibration damper

Life of this patent

Abstract

Claims21